Kwob-attachilj-gf



H. R. WILLIAMS. KNOB Amcmwc MEANS. APPLICATION FILIED FEB. l9. l9l7.

PatentedAl g. 12,1919.

THE COLUMBIA PIANOGRAPH 60.. WASHINGTON. n. c

UNITED sTATEs PATENT "OF 1 HUGH a. WILLIAMS, or c'n oaeo, mums moeammmaegm ns Specification of reinstate. P t i t edhli i919.

' pp fiiea-reti a y19.1917. s rinno. 149,489.

To all whom it may concern:

Be it known that I, HUGH R. IVILLIAMS, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Knob-Attaching Means, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements in door knob attachingmeans and has for its object to provide improved knob attaching means of simple construction that will afford a secure and quick adjustable connection between the knob and shaft.

The invention comprehends attaching means including a ratchet on one of the parts and a cooperating dog on the other part with actuating and retaining means for the dog. An importantnovel characteristic feature of the invention resides in the special construction and arrangement of the dog and retaining means, whereby the parts can be quickly assembled in operative position, and the dog readily removed .to permit the knob to be disconnected from the knob shaft.

I will explain one form which my invention may take more in detail by referring to the accompanying drawing, in which- Figure 1 is an end view of a door, portions of the knob structure being broken away more clearly toreveal features of construction;

Fig. 2 is a sectional view on line 2-2 of Fig. 1, and r Fig. 3 is a perspective view of one of the automatic locking elements.

I show in Fig. 1 a portion of a door 10 provided with the lock 11, said lock having the customary latch 12 and bolt 13. This lock is fastened in the door and has the square shaft or stem 14 projecting therethrough, said stem controlling the actuations of the latch 12. This stem is provided with a pair of knobs 15, 15, which knobs are held in position upon this stem through the agency of the improved construction which forms the subject matter of my invention.

In accordance with my invention I provide teeth or other serrations 16 along the upper edge of the stem. The shank of the knob is then provided with a slotted portion which carries a locking element 17, this look- .door. .ing 22 so that'the spring-like ring 18 may be moved out of register with the locking ing element being adapted to enter the serrations and to hold the knob 15 in position upon the stem. In order yieldingly to press thls locking element 17 into the serrations,

I provide a split ring 18 made of springy material, which ring encircles the shank of' the knob andpresses the locking element 17 inwardly. Thus in order to mount the knob 15 upon the stem 14, all that is necessary is merely to insert thestem into'the opening 19 provided therefor in the knob. The lockmg element 17 then'falls into the serrations and prevents a: return movement of the knob after it is mounted in position. Suitable rings or distance pieces 20 may control the position of the knob relative to the The door plate 21 has a central openelement 17 should it be desired at any time to remove the knob from the stem 14. However, the arrangement maybe such that an unusual application of force to the knob may permit its withdrawal, this merely depending, of course, upon the nature of the serrations 16.

From what has been thus described the nature of my invention will be readily clear to those skilled in the art.

I laving however thus described one form WlllCh my invention may take, what Iclaim as new and desire to secure by Letters Patent is: r

A device for adjustably connecting a door knob witha latch controlling spindle, comprising a latch controlling spindle having one end portion thereof provided with a series of teeth extending transversely'of the spindle, a door knob having a hollowannu lar extension adapted to fit over the toothed end portion of the spindle, the annular extension having a transverse slot intermediate the ends thereof, a locking dog consisting of a flat arcuate plate, the straight'edge of the plate being adapted to engage the transverse teeth of the annular extension, said locking plate being slidable laterally through the slot in said annular extension into engagement with the toothed end portion of the spindle," and a split annular spring locking ring encircling the annular extension and adapted to engage the outer curvedv edge'face of the locking plate to hold the same in en gagement with the toothed end portion of the spindle, the looking ring being adapted to yield as the knob ancldog are slid inwardly my name this 16th day of February, A. D. on the toothed englportion, and szitid locking 1 917, ring being slida e longitudinzi ly of th annular extension to one side of the trans- HUGH WVILLIAMS' verse slot therein to permit of the insertion Witnesses; into and Withdrawal therefrom of said (10g, HAZEL A. J ONES,

In itness whereof I hereunto subscribe A. LYDA JONES.

Copies of this patent may be btaineg 1oz: five cents, eaely'qg aditgss ipg the Commissioner of Patents,

v Washington, D. C. 

